Note 30 — Chapter VIII · THE ENERGY RESOURCES—COAL, OIL, GAS (AND ASPHALT)
Reading edition
Oil shales may also be made to yield large quantities of fuel and illuminating gas, and of ammonia (see pp. 101-102).
Reading edition
Oil shales may also be made to yield large quantities of fuel and illuminating gas, and of ammonia (see pp. 101-102).